Door hinge, check and hold open



Oct. 20, 1964 L. P. BRlssET-rE ETAL 3,153,259

DOOR HINGE, CHECK AND HOLD OPEN` 2 Sheets-Sheet 1 w T m V m ATTORNEYOct. 20, 1964 P. BRlssET'rE ETAL 3,153,259

poos HINGE, CHECK AND HOLD OPEN 2 Sheets-Sheet 2 Filed Oct. 16, 1962ATTORNEY United States Patent O 3,153,259 DOOR HEJGE, CHECK AND HOLDOPEN Lawrence P. Brissette, Utica, and Robert M. Fox, Detroit,

Mich., assignors to 'General Motors Corporation, Dedroit, Mich., acorporation of Delaware Filed Get. 16, 1962, Ser. No. 230,917 3 Claims.(Cl. 16-142) This invention relates to a door hinge, check and holdopen, and more particularly to an improved door hinge, check and holdopen Vfor a vehicle body door.

One feature of the invention is that it provides an improved door hinge,check and hold open. Another feature of this'invention is that itprovides a vehicle body door hinge check and hold open including a pairof pivotally interconnected hinge members engageable with each other indoor open position to provide a hinge cheek, with one of the hingemembers having a free end portion provided with at least one cam projection adapted to engage a detent member cam projection in door checkposition to provide a yieldable hold open, with the detent member beingmovably mounted on the other hinge member and having its cam projectionlocated in the path of movement of the free end portion cam projectionfor engagement therewith; and a further feature of this invention isthat the free end portion is provided with a pair of cam projectionssuccessively engageable with the detent member cam projection to providea two-stage hold open. Still another feature of this invention is thatit provides a vehicle body door hinge check and hold open including apair of pivotally interconnected hinge members engageable with eachother in door open position to provide a hinge check, with one of thehinge members including a free end portion provided with a camprojection engageable with a cam projection of a detent member toprovide a yieldable hold open, with the detent member being pivotallymounted on the other hinge member and being urged by biasing meanstoward the path of movement of the free end portion of the hinge member,and with the detent member cam projection being located in the path ofmovement of the free end portion cam projection by engagement of thedetent member with the other hinge member against the action of thebiasing means.

These and other features of the invention will be readily apparent fromthe following specification and drawings wherein:

FIGURE 1 is a fragmentary horizontal section through a portion of avehicle body having a door mounted thereon for movement between open andclosed positions by a door hinge, check and hold open according to thisinvention, with the door being shown in closed position;

FIGURE 2 is a view similar to FIGURE l with the door in open position;

FIGURE 3 is a view taken generally along the plane indicated by line 3 3of FIGURE 2;

' FIGURE 4 is an enlarged sectional view taken generally along the planeindicated by line 4-4 of FIGURE 3;

FIGURE 5 is a view similar to FIGURE 4 showing another embodiment ofthis invention; and

FIGURE 6 is a perspective view of a portion of the door hinge, check andhold open of this invention.

Referring particularly to FIGURE 1 of the drawings, a vehicle bodydesignated generally at 1t) includes an irregularly shaped pillar wallor jamb face 12 juxtaposed to the jamb face or wall 14 of a door 15 whenthe door is in closed position as shown. Door 15 includes an outer panel16 and an inner panel 18 which are joined adjacent one edge of the doorby the wall 14 which is welded to the inner panel and hem iianged to theouter panel. A weatherstrip 22 is mounted on Wall 14 for sealingengagement with jamb face 12. Door 15 is mounted on body 10 PatentedOct. 20, 1964 for movement between open and closed positions by a. doorhinge, check and hold open according to this invention.

As seen in FIGURES 1, 2 and 3, the door hinge, check and hold openincludes an elongated male hinge strap 24 provided with a mounting ange26 bolted to a support plate 28 on the wall 14 of the door. A generallyL-shaped female hinge strap 30 includes a mounting portion 32 receivedwithin a generally U-shaped mounting bracket 34 which is welded to thejamb face 12 v,of body 10. Strap 30 is adjustably secured to bracket 34by partially threaded bolts 36 which extend through slots in the bracketinto partially tapped apertures provided in portion 32. Strap 30 furtherincludes a bifurcated end 38 having apertured legs 40 and 41, FIGURE 3,which are pivotally connected to an intermediate portion of strap 24 bya hinge pin 42. An extension of strap 24 from the pivot thereofterminates in a free end portion 44 provided with a cam projection 46.

A generally U-shaped detent member 4S has the legs thereof pivoted at 50to opposite edges of strap 30 and includes an angular flange 52 providedwith a cam projection 54. Upper and lower coil tension springs 56 haveone end'thereof hooked to hinge pin 42 and are inserted at their otherends through apertures provided in the intermediate portion of thedetent member 48, to bias the detent member clockwise as the partsappear in FIG- URE 1. Limiting tabs 58 bent from the legs of the detentmember engage legs 4t) and 41 to locate the detent member in theposition shown in FIGURE 1.

As the door 15 is opened, hinge strap 24 and the free end portion 44thereof pivot about pin 42 until one side of portion 44 abuts theportion 32 of hinge strap 30 to provide a positive door check or stop.As seen in FIG- URE 4, the flange 52 lies in the path of movement offree end portion 44 so that the free end cam projection 46 will cam overand behind the detent member cam projection 54 to hinge check position,against the action of springs 56, and will be resiliently held therein,thus achieving a yieldable hold open. As the door is closed the free endportion cam projection 46 rides over the detent member cam projection 54to displace the detent member against the action of springs 56 anddisengage therefrom to allow further unimpeded swinging movement of thedoor to closed position.

In a second embodiment of the invention shown in FIG- URE 5, the freeend portion 44 is widened to include a pair of cam projections 60 and62, and the portion 32 of strap 30 is slightly recessed t0 receive theedge of the free end portion in hinge check position. Movement of thedoor 15 to fully open position will cause successive engagement of thefree end cam projections 6i) and 62 with the detent member camprojection 54 so as to provide a two-stage yieldable hold open atapproximately 50 and 70 degrees of door opening movement.

Thus a new and improved door hinge, check and hold open is provided.

We claim: p

1. A door hinge, check and hold open comprising, a pair of pivotallyinterconnected hinge members movable relative to each other, anextension on one of said members from the pivot thereof terminating in afree end portion provided with at least one cam projection, said freeend portion engaging the other of said members upon movement of saidhinge members relative to each other to provide a positive hinge check,a detent member straddling the other of said hinge members and includingabutment mean, means pivotally mounting said detent member on said otherof said hinge members, spring means operatively connected to said detentmember and exerting a force transversely of the path of movement of saidfree end portion to urge said detent member into the path of movement ofsaid free end portion, movement of said hinge members relative to eachother to hinge check position causin'g said free end portion camprojection to engage said detent member abutment means and provide ayieldable hold open.

2. A door hinge, check and hold open comprising, a pair of hinge memberspivotally interconnected by a hinge pin for movement relative to eachother, an extension on one of said members from the pivot thereofterminating in a free end portion provided with a cam'` projection, saidfree end portion engaging the other of said members upon movement ofsaid members relative to each other to provide a positivev hinge cheek,a generally U-shaped detent member having the legs thereof pivotallymounted on opposite edge portions of said other hingefmem'ber and beingprovided with a cam projection intermediate-the legs thereof, springmeans interconnecting said detent4 memberv and said hinge pin andexerting a force transversely of the path of movement of said free endportion` to bias said detent member toward the path of movement of saidfree end portion, and means locating said detent memberv against theaction of said spring means to locate said cam A. projection thereof inthe path of movement of said free end portion cam projection, movementof said hinge menibers relative to each other to hinge check positioncausing said free end cam projection to cam over and behind said detentmember cam projection to provide a yieldable hold open.

3. A door, check andY hold open as recited in claim 2 wherein said freeend portion is provided with an additionalcam projection and whereinmovement of said hinge members relative to each other to hinge checkposition causes said free end cam projectionsfto successively cam overand behind said detent member earn projection to provide aYtWo-stageyieldable hold open.

References Cited in the le of this patent UNITED STATES PATENTSv2,528,866 Dawson Nov. 7, 1950 2,807,828 Burns OC. l, 1957 2,947,023Hollar Allg. 2, 1960

1. A DOOR HINGE, CHECK AND HOLD OPEN COMPRISING, A PAIR OF PIVOTALLY INTERCONNECTED HINGE MEMBERS MOVABLE RELATIVE TO EACH OTHER, AN EXTENSION ON ONE OF SAID MEMBERS FROM THE PIVOT THEREOF TERMINATING IN A FREE END PORTION PROVIDED WITH AT LEAST ONE CAM PROJECTION, SAID FREE END PORTION ENGAGING THE OTHER OF SAID MEMBERS UPON MOVEMENT OF SAID HINGE MEMBERS RELATIVE TO EACH OTHER TO PROVIDE A POSITIVE HINGE CHECK, A DETENT MEMBER STRADDLING THE OTHER OF SAID HINGE MEMBERS AND INCLUDING ABUTMENT MEAN, MEANS PIVOTALLY MOUNTING SAID DETENT 